Holder for incandescing mantles.



1%. 313M118. PATENTED JAN. 30, 1906.

APPLICATION FILED MAR. 7, 1905.

lNVE-NTOR: WmuEssEs; k gm @4212;

By 14110171 ys, l j I I UNITED smgts "lemon.

OSCAR WIEDERHOLD, or JERSEY orry, new. JERSEY. HOLDER FOR INQANDESGlNG MANTLE$.

- useful Improvements in Holders for Incandescing Mantles, of which the following is a specification.

IT his invention relates to holders for mantles of incandesc'ing material. such as are ordinarily used in connection with gas-burners,

and aims to provide an improved holder especially but not exclusively for mantles which are suspended and hang down from the gas burner or tip. This arrangement of mantlesis especially useful in connection with Pintsch gas-burners as used on railway-trains, for example. Prior to this invention the life of such mantles has been short. It has been found that the mantle soon breaks along the upper edge or becomes expanded to such extent as to slip off the ring upon which the upper edge is usually-fastened, either event terminating the usefulness of the mantle. This destruction or enlargement of the upper edge of the mantle is probably due to the accumulation of parafin or other oily matter which is applied to the mantle to enable it to bear transportation and which isburned off at the beginning of use. The oily matter accumulates at the upper edge against the supporting-ri g. Where it does not burn away immediately, but boilsso as to break the very weak material of'the mantles. At the same time. the upper edge of the mantle is enlarged, and with the 'lllbl'lCfililOIl provided by the oily matter easily slips oii; the ring.-

' According to the present invention as large a portion as possible ofthe upper edge of the mantle is left free, so as to permit the ready burning away of the oily matter, the mantle being supported upon a series of points spaced apart from each other for this purpose; The

supporting of the edge of the mantle at a series of separate points instead of upon a continuous ring also permits enlargement of the edge of the mantle without disengagement,- the increased length of the edge being taken up by sagging between the points of support. It is customary to first burn out the cotton and then harden the mantles in their final shape by baking them after they are tied upon I the holders. With the old ring-shaped holderl the edge of the mantle is protected on.one faee from the action of the hardening-flame,

Specification of Letters Patent,

7 Application filed March 7, 1905. Serial Nofi249yl43.

Patented Jan. so, 1906.

and is-therefore weaker than the rest of the mantle. The mantle therefore iails very quickly in use, as the part which has to hold the weight is the weakest. The hardeningflame, with my improved holder, has substantially or nearly equal access to both faces of'the mantle at the edge as well as throughout the body, and consequently the edge is substantially as well hardened as the remainder of the mantle. Certain other advantages are. referred to in detail hereinafter.

Theaccompanying drawings illustrate an embodiment of the invention.

supported in suitable position below. the tip from a mantle-holder C. In order to provide a series of pointsof support spaced "apart from each other, the holder is provided with a series of depending lingers D, spaced apart from each other as far as possible, the spac ing beinglimited by the fact that theremust be a suflicient number of fingers to maintain the horizontal shape of the mantle, 'andthe tin-- fgers must be of suficient width to, have the required strength and resistance to. heat.

Preferably the holder is formed of so-called lavaor other refractory material. Theedge of the mantle is reinforced by means of a cord E of asbestos or other relractory material passed back and forth throughthe edge. The holder C, however, maybe formed of metal, as illustrated in Fig. 3, in which case the fin gers I) may be of wire much smaller than the fingers D of lava, and therefore giving even fuller access of the inner face of the edge of the mantle to the baking-iilam.e.'

With the described arrangement it will be seen that substantially or nearly all the edge F of the mantle *is-tree, so that the coating ordinarily'applied to strengthen the mantle for transportation can burn oil immediately and. without bubbling or other disturbance. The fingers D orD' are made as narrow as possiblaso that there can be no substantial accumulation ofthe coating material against them. At the same time the edge'of the mantle as it expands may sag more. or less be tween the fingers, as indicated in Fig. 2, so as to retain its hold upon the ends of the fingers, 7

- For hooking or attaching the, edgeof the mantle upon the ends of the fingers D they may be formed with horizontal grooves Gr, into which the asbestos cord E fits, the ends of the cord being tied after the mantle is applied to the holder. It is understood that the mantle'and holder are attached at the factory and sold in this'form.

The holder C is preferably attached to the tipAbyscrewing it'upon the same, though any suitable means of attachment may be used. Theupper portion of the holder is preferably in the form of a comparatively wide flat ring H, which serves to deflect the hot gases and prevent overheating of the upper portion of the burner. At the same time the fingers Dare preferably made of such length as to permit the escape of the products of combustion from the tip to the outside of the mantle, so as to avoid clogging the burner. The holder may be screwed to a higher or lower point on the tip, so as to adjust the level of the mouth of,

the tip relatively to the edge of the mantle to get the best results. This arrangement of a space between the ring Hand the edge of the "mantle and the capability of adjusting the height of "the holder-and mantle are of especial value in connection with an upright burner. Certain other features also may be used with advantage in confection with upright burners, givinga very rigid and durable mantle.

Though I have described with greatparticularity of detail a certain specific-embodiment-ofthe invention, yet it is not to be understood that the invention is. limited to the exact embodiment described. Various modifications thereof in detail and in the arrangement and combination of the parts may be made by those skilled in the art without departure from the invention.

What I claim is- 7 7 1. In combination a ring and a mantle at.- tached thereto with its edge spaced apart from the ring to permit theescape of products oi combustion.

2. A holder. for mantles adapted for attachment to a mantle andadapted to screw on the end of a gas-tip, whereby the mantle is held rigidly on the tip and is adjustable in height.

3. In combination, a mantle-holder for depending mantles and having a plurality ot' depending fingers, a'nda mantle depending from said holder and having its upper edge held against the lower ends of said depending'i'ingerswhereby it is supported and held from collapsing inward by said fingers.

4. A holder for depending mantles having a ring adapted to be fastened on the gas-tip, and aplurality of depending fingers the ends of which are adapted to engage andsupport the mantle. a

' 5. In combination, a holder having a pluholder by a cord passing around and holding the edge of the mantle against said points,

6; In combination a ring and a mantle sherality of points of suspension spaced apart from each other, and a'mantle attached to the pended with its upper edge'a distance belbw I said ring, spaces being left between said ring and the edge of the mantle for the escape of products of combustion.

7. A holder for depending mantles having a plurality of depending fingers D, the lower ends of which are provided, with grooves G for holding the edge of the mantle, and which are spaced apart from each other, and having a ring H at the upper end adapted to deflect the gases downward, said holder having a pro vision for fastening it on a gas-tip.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

osoAR wmnnnnofin.

lVitnesses:

DOMINGO A. USINA, -FRED WHITE. 

